Mobile terminal

Abstract

The present invention relates to a mobile terminal comprising: a terminal body; a main circuit board disposed in the body; a main conductive member spaced apart from the main circuit board and radiating electromagnetic waves at an end thereof; and a frequency varying unit disposed between the main conductive member and the main circuit board so as to vary the resonant frequency of the main conductive member, wherein the frequency varying unit comprises: a power supply unit connected to the main circuit board; and one or more sub-conductive members disposed between the main conductive member and the power supply unit; spaced apart from each other, and supplied with power by the power supply unit, and wherein the sub-conductive members and the main conductive member are a predetermined distance apart from each other.

1 . A mobile terminal comprising:
 a terminal body;   a main circuit board provided inside the terminal body;   a main conductive member spaced apart from the main circuit board and radiating an electromagnetic wave from an end portion thereof; and   a frequency varying unit provided between the main conductive member and the main circuit board and varying a resonance frequency regarding the main conductive member,   wherein the frequency varying unit includes:   a feeding portion connected to the main circuit board; and   at least one sub-conductive member disposed between the main conductive member and the feeding portion, spaced apart from each other, and fed by the feeding portion,   wherein the sub-conductive member and the main conductive member are spaced apart from each other at a predetermined interval.   
     
     
         2 . The mobile terminal of  claim 1 , wherein
 a matching module including a capacitor connected in series to the feeding portion is connected to the feeding portion.   
     
     
         3 . The mobile terminal of  claim 1 , wherein
 the main conductive member and the sub-conductive member are metal members and a size of a region in which the main conductive member and the sub-conductive member overlap is  1  to  3  mm.   
     
     
         4 . The mobile terminal of  claim 1 , wherein
 the terminal body includes a first body occupying most of the mobile terminal and a second body detachably attached to a lower portion of the first body,   wherein the second body includes:   a first member exposed to a front surface of the second body;   a second member exposed to a rear surface of the second body; and   a connection portion connecting end portions of the first and second members.   
     
     
         5 . The mobile terminal of  claim 4 , wherein
 the connection portion is formed of a metal material and the main conductive member is a part of the connection portion.   
     
     
         6 . The mobile terminal of  claim 4 , wherein
 the first member is formed of a non-metal material, and   the main conductive member is formed in a carrier spaced apart from the main circuit board and radiating an electromagnetic wave through the first member.   
     
     
         7 . The mobile terminal of  claim 1 , wherein
 a resonance frequency realized by the sub-conductive members is  4  GHz or higher.   
     
     
         8 . The mobile terminal of  claim 2 , wherein
 the frequency varying unit is provided in plurality, and   resonance frequencies realized respectively by the plurality of frequency varying units are different.   
     
     
         9 . The mobile terminal of  claim 1 , wherein
 as the length of the main conductive member is reduced, the number of the sub-conductive members is increased.   
     
     
         10 . The mobile terminal of  claim 2 , wherein
 the matching module further includes at least one lumped element connected in series or in parallel to the capacitor.